I'm thinking about getting a MBP (converting from a PC). Pretty sure most of you are aware of the 2.26ghz and the 2.53ghz models. Disregarding the the HD space and the amount of ram (due to the 2.2 having less, but I could add more at the time of purchase) Is there a noticable difference between the 2 processing speed? Will it really impact me that much for a daily use for music, movies, and web surfing? Theres a 300 difference in price between the 2. Even with a RAM upgrade it would only cost another 100. Is the extra money worth the .27 Ghz?